> devs want these new features

Devs wanted Flash and real-player plugins pack in the day too. They wanted ActiveX plugins too. No-one else wanted them and it was ultimately the downfall of IE.

> Microsoft sort of gave up and killed their browser engine This will be the downfall of chrome. Google will ultimately be fined under anti-trust, chrome funding will dry up and browsers will stop supporting these absurd features. Have a nice time rewriting all your webcomponents in javascript in 5 years.